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Greeley [361]
3 years ago
10

Which expression represents an unknown number minus 45?

Mathematics
1 answer:
lara [203]3 years ago
8 0
I believe the answer is : B
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Answer:

(10x - 5) square units.

Step-by-step explanation:

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Hence, AB + AD + DC = x + x + x = 3x

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Area  \: of \:  trapezoid  \\ =  \frac{1}{2} (AD + BC)  \times 5 \\  = \frac{1}{2} (x + 3x - 2)  \times 5  \\ = \frac{1}{2} (4x - 2)  \times 5  \\ = \frac{1}{2} \times 2 (2x - 1)  \times 5  \\  = (2x - 1) \times 5 \\  = (10x - 5) \:  {units}^{2}

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Answer:

2. A) 37 B)160 C) 110

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The hundreds digit is three from the left of a decimal point.

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The hundreth is two away to the right of the decimal point.

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